First Commit

10 files changed, 393 insertions, 0 deletions

diff --git a/src/Client/Book.java b/src/Client/Book.java
new file mode 100644
index 0000000..6d23e27
--- /dev/null
+++ b/src/Client/Book.java
@@ -0,0 +1,72 @@
+package Client;
+
+import UI.MainWindow;
+import org.json.JSONArray;
+import org.json.JSONException;
+import org.json.JSONObject;
+
+import java.util.ArrayList;
+
+public class Book {
+    private int id;
+    private String title;
+    private String author;
+    private int issuedBy;
+
+    public Book(int id, String title, String author, int issuedBy) {
+        this.id = id;
+        this.title = title;
+        this.author = author;
+        this.issuedBy = issuedBy;
+    }
+
+    public static ArrayList<Book> fromObjects(Object[] array) throws JSONException {
+        ArrayList<Book> books = new ArrayList<>();
+
+        JSONArray jsonArray = (JSONArray) array[0];
+
+        for (int i = 0; i < jsonArray.length(); i++) {
+            JSONObject jsonObject = jsonArray.getJSONObject(i);
+
+            // Extract fields from JSON object
+            int id = jsonObject.getInt("id");
+            String title = jsonObject.getString("title");
+            String author = jsonObject.getString("author");
+            int issuedBy = jsonObject.getInt("issuedBy");
+
+            // Create a Book object and add it to the list
+            Book book = new Book(id, title, author, issuedBy);
+            books.add(book);
+        }
+
+        return books;
+    }
+
+    public void issue() {
+        SocketClient.socket.emit("issue",
+                "{" +
+                        "\"id\":" + MainWindow.userId + "," +
+                        "\"bookId\":" + this.id +
+                        "}");
+    }
+
+    public void returnBook() {
+        SocketClient.socket.emit("return",
+                "{" +
+                        "\"id\":" + MainWindow.userId + "," +
+                        "\"bookId\":" + this.id +
+                        "}");
+    }
+
+    public String getTitle() {
+        return title;
+    }
+
+    public String getAuthor() {
+        return author;
+    }
+
+    public int getIssuedBy() {
+        return issuedBy;
+    }
+}
diff --git a/src/Client/SocketClient.java b/src/Client/SocketClient.java
new file mode 100644
index 0000000..9ce80a3
--- /dev/null
+++ b/src/Client/SocketClient.java
@@ -0,0 +1,19 @@
+package Client;
+
+import io.socket.client.IO;
+import io.socket.client.Socket;
+
+import java.net.URISyntaxException;
+
+public class SocketClient {
+    public static Socket socket;
+
+    public SocketClient(String url) {
+        try {
+            socket = IO.socket(url);
+        } catch (URISyntaxException e) {
+            throw new RuntimeException(e);
+        }
+
+    }
+}
diff --git a/src/META-INF/MANIFEST.MF b/src/META-INF/MANIFEST.MF
new file mode 100644
index 0000000..37197ef
--- /dev/null
+++ b/src/META-INF/MANIFEST.MF
@@ -0,0 +1,3 @@
+Manifest-Version: 1.0

+Main-Class: Main

+

diff --git a/src/Main.java b/src/Main.java
new file mode 100644
index 0000000..c02430a
--- /dev/null
+++ b/src/Main.java
@@ -0,0 +1,20 @@
+import UI.MainWindow;
+
+import javax.swing.*;
+import java.awt.*;
+
+public class Main {
+    public static void main(String[] args) {
+        try {
+            UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());
+        }
+        catch (UnsupportedLookAndFeelException | ClassNotFoundException | InstantiationException |
+               IllegalAccessException _) {
+        }
+
+        EventQueue.invokeLater(() -> {
+            MainWindow w = new UI.MainWindow();
+            w.setVisible(true);
+        });
+    }
+}
diff --git a/src/UI/Components/BookListItem.java b/src/UI/Components/BookListItem.java
new file mode 100644
index 0000000..9042762
--- /dev/null
+++ b/src/UI/Components/BookListItem.java
@@ -0,0 +1,47 @@
+package UI.Components;
+
+import Client.Book;
+import UI.MainWindow;
+
+import javax.swing.*;
+import javax.swing.border.EmptyBorder;
+import javax.swing.border.MatteBorder;
+import java.awt.*;
+
+public class BookListItem extends JPanel {
+    BookListItem(Book book) {
+        this.setBorder(BorderFactory.createCompoundBorder(new EmptyBorder(6, 10, 6, 10), new MatteBorder(0, 0, 1, 0, Color.BLACK)));
+
+        boolean issued = book.getIssuedBy() != 0;
+
+        JLabel titleLabel = new JLabel(book.getTitle());
+        titleLabel.setFont(new Font(titleLabel.getFont().getName(), Font.BOLD, titleLabel.getFont().getSize() + 2));
+        this.add(titleLabel);
+
+        JPanel issueButtonPanel = new JPanel();
+        issueButtonPanel.setLayout(new FlowLayout(FlowLayout.RIGHT));
+        if (!issued || book.getIssuedBy() == MainWindow.userId) {
+            JButton issueButton = new JButton(issued ? "Return Book" : "Issue Book");
+            issueButtonPanel.add(issueButton);
+
+            issueButton.addActionListener(e -> {
+                if (issued) {
+                    book.returnBook();
+                } else {
+                    book.issue();
+                }
+            });
+        } else {
+            issueButtonPanel.add(new JLabel("Book is Unavailable"));
+        }
+        this.add(issueButtonPanel);
+
+        JLabel authorLabel = new JLabel(book.getAuthor());
+        authorLabel.setForeground(Color.DARK_GRAY);
+        this.add(authorLabel);
+
+        this.setMaximumSize(new Dimension(650, 100));
+        this.setLayout(new GridLayout(2, 2));
+    }
+}
+
diff --git a/src/UI/Components/BooksList.java b/src/UI/Components/BooksList.java
new file mode 100644
index 0000000..05a2f5f
--- /dev/null
+++ b/src/UI/Components/BooksList.java
@@ -0,0 +1,38 @@
+package UI.Components;
+
+import Client.Book;
+
+import javax.swing.*;
+import java.util.ArrayList;
+
+public class BooksList extends JPanel {
+    private static JPanel listPanel;
+
+    public BooksList() {
+        listPanel = new JPanel();
+        listPanel.setLayout(new BoxLayout(listPanel, BoxLayout.Y_AXIS));
+
+        JScrollPane scrollPane = new JScrollPane(listPanel);
+        scrollPane.setVerticalScrollBarPolicy(JScrollPane.VERTICAL_SCROLLBAR_ALWAYS);
+
+        this.add(scrollPane);
+
+        this.setLayout(new BoxLayout(this, BoxLayout.Y_AXIS));
+    }
+
+    public static void refreshBooks(ArrayList<Book> books) {
+        new Thread(new Runnable() {
+            @Override
+            public void run() {
+                listPanel.removeAll();
+
+                for (Book book : books) {
+                    listPanel.add(new BookListItem(book));
+                }
+
+                listPanel.revalidate();
+                listPanel.repaint();
+            }
+        }).start();
+    }
+}
diff --git a/src/UI/Components/InputBox.java b/src/UI/Components/InputBox.java
new file mode 100644
index 0000000..c15381e
--- /dev/null
+++ b/src/UI/Components/InputBox.java
@@ -0,0 +1,39 @@
+package UI.Components;
+
+import javax.swing.*;
+import java.awt.*;
+
+public class InputBox extends JPanel {
+    JLabel label;
+    JTextField textField;
+
+    public InputBox(String label) {
+        this.label = new JLabel(label);
+        this.label.setPreferredSize(new Dimension(70, 30));
+        this.add(this.label);
+
+        this.add(Box.createHorizontalGlue());
+
+        this.textField = new JTextField(20);
+        this.add(this.textField);
+
+        this.setLayout(new FlowLayout(FlowLayout.CENTER));
+    }
+
+    public String getLabel() {
+        return this.label.getText();
+    }
+
+    public String getValue() {
+        return this.textField.getText();
+    }
+
+    public void setLabel(String label) {
+        this.label.setText(label);
+    }
+
+    public void setValue(String value) {
+        this.textField.setText(value);
+        this.textField.repaint();
+    }
+}
diff --git a/src/UI/Components/LoginPanel.java b/src/UI/Components/LoginPanel.java
new file mode 100644
index 0000000..e79326b
--- /dev/null
+++ b/src/UI/Components/LoginPanel.java
@@ -0,0 +1,55 @@
+package UI.Components;
+
+import UI.MainWindow;
+import UI.SettingsPopupWindow;
+
+import javax.swing.*;
+import javax.swing.border.EmptyBorder;
+import java.awt.*;
+
+public class LoginPanel extends JPanel {
+    public JButton loginButton;
+    private SettingsPopupWindow settingsPopupWindow;
+
+    public InputBox usernameInput;
+    public InputBox passwordInput;
+
+    public LoginPanel() {
+        usernameInput = new InputBox("Username:");
+        usernameInput.setBorder(new EmptyBorder(140, 100, 0, 100));
+        this.add(usernameInput);
+
+        passwordInput = new InputBox("Password:");
+        passwordInput.setBorder(new EmptyBorder(10, 100, 10, 100));
+        this.add(passwordInput);
+
+        JPanel buttonPanel = new JPanel();
+        buttonPanel.add(Box.createRigidArea(new Dimension(140, 0)));
+
+        JButton settingsButton = new JButton("Settings");
+        settingsButton.addActionListener(_ -> {
+            if (settingsPopupWindow == null) {
+                settingsPopupWindow = new SettingsPopupWindow();
+                settingsPopupWindow.saveButton.addActionListener(_ -> {
+                    MainWindow.url = settingsPopupWindow.hostnameInput.getValue();
+                    settingsPopupWindow.setVisible(false);
+                });
+            }
+
+            settingsPopupWindow.hostnameInput.setValue(MainWindow.url);
+
+            settingsPopupWindow.setVisible(true);
+        });
+        buttonPanel.add(settingsButton);
+
+        buttonPanel.add(Box.createRigidArea(new Dimension(10, 0)));
+
+        loginButton = new JButton("Login");
+        buttonPanel.add(loginButton);
+
+        buttonPanel.setLayout(new BoxLayout(buttonPanel, BoxLayout.X_AXIS));
+        this.add(buttonPanel);
+
+        this.setMaximumSize(new Dimension(350, 200));
+    }
+}
diff --git a/src/UI/MainWindow.java b/src/UI/MainWindow.java
new file mode 100644
index 0000000..8c3964e
--- /dev/null
+++ b/src/UI/MainWindow.java
@@ -0,0 +1,69 @@
+package UI;
+
+import Client.Book;
+import Client.SocketClient;
+import UI.Components.BooksList;
+import UI.Components.LoginPanel;
+import org.json.JSONArray;
+import org.json.JSONException;
+import org.json.JSONObject;
+
+import javax.swing.*;
+import java.awt.*;
+import java.net.Socket;
+
+public class MainWindow extends JFrame {
+    public static String url = "http://localhost:8080";
+    public static int userId = 0;
+
+    public MainWindow() {
+        this.setTitle("User Panel - Library Management System");
+        this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
+        this.setSize(650, 500);
+        this.setResizable(false);
+        this.setLocationRelativeTo(null);
+
+        CardLayout cardLayout = new CardLayout();
+        JPanel cardPanel = new JPanel(cardLayout);
+
+        LoginPanel loginPanel = new LoginPanel();
+        loginPanel.loginButton.addActionListener(e -> {
+            new SocketClient(url);
+            SocketClient.socket.connect();
+
+            SocketClient.socket.emit("login",
+                    "{" +
+                            "\"userName\": \"" + loginPanel.usernameInput.getValue() + "\"," +
+                            "\"password\": \"" + loginPanel.passwordInput.getValue() + "\"" +
+                            "}");
+
+            SocketClient.socket.on("loggedIn", data -> {
+                MainWindow.userId = (int) data[0];
+
+                SocketClient.socket.on("allBooksList", d -> {
+                    try {
+                        BooksList.refreshBooks(Book.fromObjects(d));
+                    } catch (JSONException ex) {
+                        throw new RuntimeException(ex);
+                    }
+                });
+
+                SocketClient.socket.on("booksUpdated", d -> {
+                    try {
+                        BooksList.refreshBooks(Book.fromObjects(d));
+                    } catch (JSONException ex) {
+                        throw new RuntimeException(ex);
+                    }
+                });
+
+                SocketClient.socket.emit("getAllBooks");
+                cardLayout.next(cardPanel);
+            });
+        });
+        cardPanel.add(loginPanel);
+
+        cardPanel.add(new BooksList());
+
+        this.add(cardPanel);
+    }
+}
diff --git a/src/UI/SettingsPopupWindow.java b/src/UI/SettingsPopupWindow.java
new file mode 100644
index 0000000..6c77e07
--- /dev/null
+++ b/src/UI/SettingsPopupWindow.java
@@ -0,0 +1,31 @@
+package UI;
+
+import UI.Components.InputBox;
+
+import javax.swing.*;
+import javax.swing.border.EmptyBorder;
+import java.awt.*;
+
+public class SettingsPopupWindow extends JFrame {
+    public InputBox hostnameInput;
+    public JButton saveButton;
+
+    public SettingsPopupWindow() {
+        this.setTitle("Settings - Library Management System");
+        this.setSize(350, 200);
+        this.setResizable(false);
+        this.setLocationRelativeTo(null);
+
+        this.hostnameInput = new InputBox("Hostname:");
+        this.hostnameInput.setBorder(new EmptyBorder(0, 10, 0, 10));
+        this.add(this.hostnameInput);
+
+        saveButton = new JButton("Save");
+        JPanel buttonPanel = new JPanel();
+        buttonPanel.setBorder(new EmptyBorder(0, 0, 0, 12));
+        buttonPanel.add(saveButton);
+        this.add(buttonPanel);
+
+        this.setLayout(new FlowLayout(FlowLayout.TRAILING));
+    }
+}